1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ra1l [238]
3 years ago
7

I need help with this

Chemistry
2 answers:
notka56 [123]3 years ago
8 0

Answer: B

Explanation: All you have to do to find out if an equation is balanced is count the number of atoms on each side. To be balanced, they must be equal.

In case you didn’t know: The number in front of an element or compound means that you will multiply. For instance, 2AlBr3 would have 2 Al atoms and 6 Br atoms. The subscript number just means how many atoms there are in that compound.

marshall27 [118]3 years ago
7 0
What is it you need help on? there is nothing here????

ANSWER:
You might be interested in
You have 1.0 mole of each compound below. which has the greatest mass?
kramer
(a) Iron (iii) sulphate:
From the periodic table:
mass of iron = 55.845 grams
mass of sulphur = 32.065 grams
mass of oxygen = 16 grams
Iron (iii) sulphate has the formula: Fe2(SO4)3
molar mass = 2(55.845) + 3(32.065) + 3(4)(16) = 399.885 grams

(b) Sodium hydroxide:
From the periodic table:
mass of sodium = 22.989 grams
mass of oxygen = 16 grams
mass of hydrogen = 1 gram
Sodium hydroxide has the formula: NaOH
molar mass = 22.989 + 16 + 1 = 39.989 grams

(c) Barium carbonate
From the periodic table:
mass of barium = 137.327 grams
mass of carbon = 12 grams
mass of oxygen = 16 grams
Barium carbonate has the formula: BaCO3
molar mass = 137.327 + 12 + 3(16) = 197.327 grams

(d) ammonium nitrate:
From the periodic table:
mass of nitrogen = 14 grams
mass of hydrogen = 1 gram
mass of oxygen = 16 grams
Ammonium nitrate has the formula: NH4NO3
molar mass = 14 + 4(1) + 14 + 3(16) = 80 grams

(e) Lead (iv) oxide
From the periodic table:
mass of lead = 207.2 grams
mass of oxygen = 16 grams
Lead (iv) oxide has the formula: PbO2
molar mass = 207.2 + 2(16) = 239.2 grams

From the above calculations, we can see that:
Iron (iii) sulphate has the greatest mass.
5 0
3 years ago
What is the mass of 2M H2SO4 in a 50ml of solution ​
Cloud [144]

Answer:

It is given in the question that molarity of the sulphuric acid is 2M, the volume of the sulphuric acid is 20 mL, the volume of the solution is 1`L.

8 0
3 years ago
Select the ion.<br><br>1)Cu<br>2)PO4-3<br>3)SO2
Lilit [14]
I believe the answer is B. PO4-3
6 0
3 years ago
Read 2 more answers
The weight on an object depends on its(blank)and the(blank) of Earth.
Nonamiya [84]

Answer:

mass and height? idfk

Explanation:

ik mass is correct tho

7 0
3 years ago
Jin listed some common thermal insulators and conductors in a chart.
krek1111 [17]

Answer:

j

Explanation:j

6 0
3 years ago
Read 2 more answers
Other questions:
  • Areas of the periodic table that contain elements that form cations in ionic compounds.
    8·1 answer
  • How many oxygen atoms<br> in 4 Al 2 O 3
    13·1 answer
  • What specifically determines how much energy is available in a molecular
    12·1 answer
  • An atom is made of 5 protons, 6 neutrons, and 7 electrons. Another atom is made of 6 protons, 5 neutrons, and 3 electrons. What
    12·1 answer
  • !!HELP ASAP!!What is an electrostatic force?
    14·1 answer
  • What type of energy is carried by electrical charges as they move in a circuit?
    10·1 answer
  • How many atoms are there in 1 g of argon?
    6·1 answer
  • Ag + HCl --&gt; ?
    13·1 answer
  • The inside window pane in your house feels very cold to touch on a winter night. How does the heat transfer?
    10·1 answer
  • What type of Energy is stored in chemical bonds?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!